Method and device for power saving mode control in mobile communication system

A UE device capable of Power Saving Mode (PSM) operation control in a mobile communication system, comprising:

• a transceiver configured to communicate with at least one network node;
• and
• a controller configured to:
• set a PSM for the UE,
• trigger a connection request of the UE in the PSM,
• determine whether the connection request has been barred,
• deactivate the PSM and change to an active mode, when it is determined that the connection request has not been barred, and
• maintain the PSM setting without changing to an idle mode, when it is determined that the connection request has been barred.

A non-transitory computer readable medium comprising a plurality of instructions configued to, when executed by a processor, cause the processor to:

• set a Power Saving Mode (PSM) for a including the processor;
• trigger a connection request of the device in the PSM;
• determine whether the connection request has been barred;
• deactivate the PSM and change to an active mode, when it is determined that the connection request has not been barred;
• and
• maintain the PSM setting without changing to an idle mode, when it is determined that the connection request has been barred.